Log In And Switch Users In Multiuser Targets

General Information

Targets are the new “runlevels” equivalent if you are coming from RHEL 6.

View default target (target at boot)

~$ systemctl get-default
multi-user.target

Switch User to root

su -

• -, -l, –login ⇒ Load login profile (~/.bash_profile)
• When no username is specified after options (such as -), root is assumed

Types of profiles

• ~/.bash_profile ⇒ Execute upon login shells
• ~/.bashrc ⇒ Execute on every shell
• /etc/profile ⇒ Executed on every user login (system wide environmentals)
• /etc/bashrc ⇒ Executed on every user interactive shell (system wide functions and aliases)